PENTAIR SHURFLO 4028-100-E54 Revolution 12V Water Pump, 2.3 GPM Diaphragm Pump, 50 PSI Automatic Demand, Self Priming 6 Ft, Run Dry Safe, RV Marine Camping Fresh Water Pump, 1/2 Inch NPSM Ports

SHURFLO 4028-100-E54 Reliable Diaphragm Design: 4 chamber diaphragm pump with one-piece diaphragm and internal bypass for steady 2.3 GPM water flow and dependable pressure control for RV plumbing, marine systems, and portable water transfer, Automatic Pressure Control: Built in switch shuts off at 50 PSI and restarts at 40 PSI to deliver consistent water pressure when faucets showers or dispensers are opened in RV camping or boat water systems, Self-Priming Performance: Dry primes up to 6 feet and safely runs dry without damage, making it ideal when water supply changes or tanks run low during travel, camping, or outdoor utility use, Durable Construction: Polypropylene housing, Santoprene diaphragm, and EPDM valves with stainless and zinc-plated hardware for long service life in fresh water systems exposed to frequent use, Flexible Installation: 12V DC permanent magnet motor with thermal overload protection mounts in any position for RV owners, campers, boaters, and mobile setups needing a compact demand pump